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Independent microgrid mixed control method and system based on combination of peer-to-peer control and intensive control

A peer-to-peer control and centralized control technology, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of coordinated control and operation complexity, and the influence of system operation status, so as to achieve flexible and efficient operation control and improve active frequency characteristics , Improve the effect of economy and flexibility

Active Publication Date: 2015-07-22
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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Problems solved by technology

[0006] In fact, independent microgrids often include various distributed power sources such as intermittent power sources, synchronous generator sets, and energy storage systems, and there are many distributed power sources, and their coordinated control and operation are very complicated. Both the control strategy and the control method will have a greater impact on the system operation

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  • Independent microgrid mixed control method and system based on combination of peer-to-peer control and intensive control
  • Independent microgrid mixed control method and system based on combination of peer-to-peer control and intensive control
  • Independent microgrid mixed control method and system based on combination of peer-to-peer control and intensive control

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[0024] In order to make the purpose of the invention, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementations described in this specification are only for explaining the present invention, not for limiting the present invention.

[0025] see figure 1 , the present invention is based on the combination of peer-to-peer control and centralized control. The independent micro-grid hybrid control system includes an independent micro-grid and a micro-grid central control center. The independent micro-grid includes a variety of distributed power sources, and the independent micro-grid is connected to the micro-grid central control center. , the distributed power supply includes a main control power supply and an auxiliary power supply. The main control p...

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Abstract

The invention discloses an independent microgrid mixed control method and system based on combination of peer-to-peer control and intensive control. The independent microgrid comprises various distributed power sources and is connected with a microgrid central control center. The independent microgrid mixed control method includes (1) controlling parallel operation of master control power sources in the independent microgrid by peer-to-peer control; (2) balancing and optimizing discrete control activity of the distributed power source from the overall angle by intensive control. The invention further discloses an independent microgrid mixed control system based on combination of peer-to-peer control and intensive control. The independent microgrid mixed control method and system based on combination of peer-to-peer control and intensive control solves the problem of coordinative control of various types and numbers of distributed power sources in the independent microgrid system, stability in voltage and frequency in system operation is guaranteed, and optimal operation and maximized value of the system are improved.

Description

technical field [0001] The present invention relates to micro-grid operation control technology, more specifically, to a hybrid control method and system for an independent micro-grid based on the combination of peer-to-peer control and centralized control. Background technique [0002] Independent microgrid refers to a small power system that is isolated from the external large power grid and operates independently. It mainly includes two forms: (1) an island-style microgrid that is not connected to the external large power grid; The static switch at the common connection point disconnects the connection with the main grid and transfers to the microgrid in the independent operation mode. [0003] Existing research and practice have shown that an independent microgrid with multiple distributed power sources can effectively improve the power supply reliability and power quality of the system and reduce costs. It is not only an effective way to solve and improve the scattered ...

Claims

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Application Information

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IPC IPC(8): H02J3/46
CPCY02P80/14H02J3/46H02J3/381
Inventor 李鹏雷金勇杨苹喻磊许志荣郭晓斌许爱东周少雄马艺玮马溪原王建邦
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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